1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
m_a_m_a [10]
2 years ago
6

Should existing structures build from CCA-treated wood be removed?

Biology
1 answer:
stiks02 [169]2 years ago
5 0
<span>Chromated copper arsenate, or CCA, is a pesticide that has been used for years in pressure-treating lumber to prevent destruction from rot and insects. Arsenic, a toxic chemical, can leach from this treated wood, leaving residues on the wood’s surface and in nearby soil. Young children who play on or near decks or playscapes made from CCA- treated wood can get arsenic on their skin and into their bodies, especially if they eat or drink without washing their hands. Because of the health risks of long-term exposure to arsenic, the Environmental Protection Agency (EPA) has announced that as of December 31, 2003, arsenic Currently the EPA does not recommend that people remove existing structures made with CCA-treated wood or the soil surrounding those structures. However, they do recommend that people reduce their potential exposure to arsenic.</span>
You might be interested in
A student places a healthy potted plant and a plastic straw in a closet for two weeks. After two weeks, the student observes tha
vivado [14]

Answer:

Plants need water and sun to create their food source, glucose. When the plant was left in the closet it didn't have access to the sun. One of the requirements of life is that all living things need energy/have a metabolism. Without food the plant eventually died.

3 0
2 years ago
<img src="https://tex.z-dn.net/?f=2%20%5Cfrac%7B1%7D%7B3%7D%20%20%20%2B%203%20%5Cfrac%7B5%7D%7B7%7D%20" id="TexFormula1" title="
Agata [3.3K]
6 for the top in the middle 5 down is 10
6 0
3 years ago
Read 2 more answers
A dihybrid cross is performed between plants that differ in two Mendelian traits: Stem length (T or t) and flower coloration (R
Dahasolnce [82]

Answer:

A. 3/16

Explanation:

The four possible outcomes for Stem length are:

Tt, tT, TT and tt.

The dominant trait (tall stems) will manifest itself in 3 out of 4 outcomes, so its ratio is 3/4.

The four possible outcomes for flower coloration are:

Rr, rR, RR and rr.

The non-dominant trait (white flowers) will manifest itself in 1 out of 4 outcomes, so its ratio is 1/4.

Multiplying both ratios gives us the ratio of offspring that have tall stems and white flowers:

\frac{3}{4}*\frac{1}{4}=\frac{3}{16}

Therefore, the answer is A. 3/16

4 0
2 years ago
A single stranded nucleic acid that plays a role in protein synthesis. This holds an organisms hereditary information. This bond
torisob [31]

I think the answer is phosphorus.

7 0
3 years ago
In order for this code to represent a piece of DNA, which base must be replaced by thymine?
HACTEHA [7]
I guess you forgot to add the picture or so.
Based on the Complementarity of the 4 nucleotides, The thymine must always be placed in  front of the Adenine, and the Cytosine must always be placed in front of the Guanine.
Any change in this rule causes the deformation of the DNA, and can sometimes cause fatal diseases like the melanoma (skin cancer) etc...

Hope this Helps! :)
7 0
3 years ago
Other questions:
  • Write the difference between Food Chain and Food Web with example on each:
    12·1 answer
  • Organisms that rely on other living things for food are called
    7·2 answers
  • Pelvic bones in whales are an example of ____ structures
    7·2 answers
  • (b) Identify the independent variable used in the experiment. Identify the difference between the control cells and the experime
    12·1 answer
  • Which statement best describes the amount of catalyst that remains at the end of a reaction? More catalyst is present at the end
    11·2 answers
  • Which attributes does the exosphere have
    11·1 answer
  • Are plant cells and animal cells exactly the Same? Explain and give examples.​
    8·2 answers
  • In a prokaryotic cell, most ribosomes are _____.
    5·2 answers
  • Identify the functions of the structures indicated.
    13·2 answers
  • Which of the following best represents the purpose of fertilizers?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!